GTAC Observation Log 1. Date : 29/01/2018 2. Observation Sr. No. : 10056 3. Observer : James Richard Allison, Joseph Russell Callingham, Stephen John Curran, Elizabeth Kate Mahony, Vanessa Moss, Marcin Glowacki, Neeraj Gupta, Elaine Sadler 4. Observer's Email : james.allison@sydney.edu.au, callingham@astron.nl, scurran.astro@gmail.com, elizabeth.mahony@sydney.edu.au, vmoss.astro@gmail.com, marcin@aapt.net.au, ngupta@iucaa.in, ems@physics.usyd.edu.au 5. Project Name : HIghZ: A blind 21-cm line survey for high-redshift radio galaxies 6. Project Code : 33_025 7. Operator(s) : Nilesh, Sachin, Surender 8. Command File : /odisk/gtac/cmd/28jan18.cmd 9. LTA File : /gwbifrdata2/28jan/33_025_28jan2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/33_025.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1_shivneri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : ON 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 306 306 255 255 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : W05 : : Strong RFI @325MHz. E03 : : Strong RFI @325MHz. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 Jan 2018 22:30:00 - 29 Jan 2018 05:30:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 22:45 : Started set-up. ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 33_025 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 128 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 22:50 : Started scan on 3C147 for 15 mins. 23:12 : Started command file. Scan No. 22 and 24 are bad. 09:22 : E06 taken for painting work. 15:10 -15:25 : W-arm power failure. 15:50 : Started command file. /odisk/gtac/cmd/33_025/obs_29jan.cmd 17:43 : E06 Released for observation. 20:53 : C08 Frequently getting ABC reset. 22:11 : Stopped command file. 22:17 : Started command file. /odisk/gtac/cmd/33_025/28jan18.cmd 03:55 : GWB acquisition and recording stopped tried. This problem observed at 04:50. Restarted whole chain but could not start scan on phase cal. 05:15 : Closed observation session.